Security Guard in Beijing

A security guard keeps watch over the Bird's Nest Stadium in Olympic Green in northern Beijing, which is shrouded in a heavy cloud of pollution. In the Beijing-Tianjin-Hebei region there is an aim to reduce the average annual PM2.5 level by 25% by 2017. However, with this cleanup pace the National Air Quality Standard Level of 35µg/m3 cannot be achieved until 2030.